Hagerstown Valley is located in Maryland in the United States.
The political definition restricts Hagerstown Valley to Washington County, Maryland, while the larger definition includes part of Franklin County, Pennsylvania as well.
Antietam Creek flows through Hagerstown Valley to the Potomac River.
The main cities are Hagerstown, Maryland and Waynesboro, Pennsylvania.
The water divide between Hagerstown and Cumberland valleys occurs near the city of Chambersburg, Pennsylvania.